General

Affected tag(s) to be modified/added: line_attachment
Question asked: How power line is attached on this support?

Checklist

Checklist for quest suggestions (see guidelines):

• 🚧 To be added tag is established and has a useful purpose
• 🤔 Any answer the user can give must have an equivalent tagging (Quest should not reappear to other users when solved by one)
• 🐿️ Easily answerable by any pedestrian from the outside but a survey is necessary
• 💤 Not an overwhelming percentage of quests have the same answer (No spam)
• 🕓 Applies to a reasonable number of map data (Worth the effort)

Ideas for implementation

Element selection: Attachments may be complex and sometimes a single support may have different attachments leading to complex tagging notation like line_attachment=(suspension|pin|suspension)|(anchor). That's not what we expect for streetcomplete quest.
We should only select nodes as power=pole,tower,insulator supports with:

• no line_attachment=* key.
• only one line passing by power supports

Metadata needed: This quest is worldwide and no local metadata applies.

Proposed UI:
Drawings are took from wiki and could be enhanced/redrawn to meet streetcomplete's standards. We could use photos as well.